[OSM-talk] Crossings of a road

andrzej zaborowski balrogg at gmail.com
Fri Jun 12 20:13:56 BST 2009


2009/6/12 Christoph Böhme <christoph at b3e.net>:
> Shaun McDonald <shaun at shaunmcdonald.me.uk> schrieb:
>> You could place a footway parallel to the road and map in higher
>> than normal.
>
> I often map the pavement/sidewalk separately from the main road when
> there they are separated from it by a stripe of grass, trees or hedges.
> However, while this allows for a quite detailed mapping of footpaths,
> it does not look very nice on the map as you end up with many dashed
> red lines parallel to each road:
>
> http://www.openstreetmap.org/?lat=52.4265&lon=-1.94337&zoom=16&layers=B000FTF

I think this looks fine and is also faithful to the reality, even if
the pavement is not physically separate from the road, logically it is
a different route.

>
> I am thinking of tagging these footways as highway=pavement/sidewalk
> (whatever is not ambiguous) so that renderers can distinguish them from
> normal footways which are not part of a bigger road. This would allow
> to only show them in very high zoom levels and also to display them in
> less catching colours.

This loses the information of which side the sidewalk is and that may
be important for routing.

Cheers




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